Quote:
Originally Posted by garbler
I can tell you this whole question was thought about and tested with various fastener measurements etc. years ago after I witnessed this spectacle. I can assure you that in the instance of this shrimper the scheme was a bad idea. I wrote a paper on this over thirty years ago and gave it to the USCG New London where a number of wood hull experts were called in looking for some magic instrument they could use for fastener inspection. I brought ultrasonics to the game but wasn’t feasible for them. This was right after the El Toro accident. I didn’t think a paper like this belonged here but I could give you some of the hi lights later on when I get home.
Rick
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i'd like to see this please. i've been involved with engineered wood products all my working life and find the subject interesting. like you say, could be a bit much for this forum, but still...
you are quite right about doing forensic diagnosics on the can be difficult as there's no easy way to examine the fiber structure of the sample. x-ray would be tough with the way the screw would obscure the wood fiber. newer high def x-ray might give a better picture but i don't have access to that technology. taking a slice and examining it under a microscope might give a reasonable picture, but preparing the sample relies heavily on the talent of the person doing the prep. freezing the sample before slicing perhaps? i don't know. very hard to get a good sample without disturbing the structure. interesting subject though.
you were there to see it first hand, so i'd defer to your knowledge of the subject, but really i'd love to see the research.